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Air quality in Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
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Saint Louis Air Quality Map
Real-time Saint Louis air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Saint Louis today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Clear sky |
| Temperature | 26.6°F |
| Humidity | 86% |
| Wind | 0 mp/h |
| Pressure | 30.4 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 157 |
| 2 | Pahrump, Nevada | 68 |
| 3 | Conway, South Carolina | 66 |
| 4 | Tallahassee, Florida | 66 |
| 5 | Gary, Indiana | 63 |
| 6 | Decatur, Georgia | 61 |
| 7 | Ocala, Florida | 61 |
| 8 | Atlanta, Georgia | 60 |
| 9 | Marietta, Georgia | 60 |
| 10 | Athens, Georgia | 59 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
13*
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 13* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.3*µg/m³ | |
✓
PM2.5 concentration in Saint Louis air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Saint Louis?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Saint Louis air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 13 AQI US |  | 51.8° 26.6° |  6.7 mp/h |
| Friday, Apr 26 | Good 21 AQI US | | 60.8° 33.8° | 13.4 mp/h |
| Saturday, Apr 27 | Moderate 58 AQI US  |  100% | 73.4° 50° | 15.7 mp/h |
| Sunday, Apr 28 | Moderate 57 AQI US | 100% | 66.2° 62.6° | 13.4 mp/h |
| Monday, Apr 29 | Moderate 74 AQI US | 100% | 69.8° 59° | 17.9 mp/h |
| Tuesday, Apr 30 | Good 29 AQI US | 80% | 68° 50° | 11.2 mp/h |
| Wednesday, May 1 | Good 9 AQI US | 70% | 66.2° 53.6° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Saint Louis?
No locations are available.
AQI US, Metric